op weym



(No Model.)

J. J. LOUD.

PEN.

No. 392,046. Patented Oct. 30, 1888.

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Fig.

W/TNESSES Cam: 8. .QML

UNITED STATESTPATENT- OFFICE.

- JOHN J. noun, or WEYMOU'DH, M ssAcn snT'rs.

SPECIFICATION formlngpart of Letters Patent No. 392,046, dated October30,1888. Application filed February 4, 1888. Serial No. 262.9!10. (NolllmliLl 1'0 all whom it may concern:

Be it known that I, JOHN J. Loon, a citizen 01' the United States,residing at Weymouth, in the county of Norfolk and Commonwealth ofMassachusetts, have invented certain new and useful Improvements inPens, of which the following is a specification.

My invention consists of an improved reservoir or fountain pen,especially useful, among other purposes, for marking on roughsurfaces-such as wood, coarse wrapping-paper,

and other,articleswhere an ordinary pen could not be used.

Of the accompanying drawings, Figure 1 represents a longitudinal sectionof my improved pen. Fig.2 is a side elevation. Fig. 3 is a section on w2;,Fig. 1, looking toward the screw-cap B. Fig. 4 is a section on g} 1Fig. 1, looking toward the marking-point.

A is the tube or barrel of the instrument, made of any desired material,drawn down Slightly at one end, as at f, to form a contracted mouth andfurnished at the other with an interiorscrew-thread into which fits thetapped screw-cap B,preferably provided with a milled head, as shown. Theinner diameter of the tube A is slightly greater than the diameter ofthe spheroid L, which forms the markingpoiut, and which is preferably asphere. The sphere L is introduced into the upper screwthreaded end ofthe tube A, and, falling to the bottom, is held therein by thecontracted portion f, the diameter of which is such as to allowthesphereLto project, preferably, about one-third of its diameter beyondthe end of the tube. Above the marking-sphere L are the smaller balls,K, of suitable size and number to furnish an upward anti-frictionbearing for the said marking-sphere. In the pen herein illustrated Ihave used three of these antifriction balls K, which are of sufiicientsize when dropped into the tube Ato dispose themselves evenly around thetop of the sphere L and against the inner surface of the tube. G is arod provided at its upper end with an enlarged flaring portion, 9, andat the other end with the somewhat comicallyshaped bearing H, whichbears against the balls K, the shape of its under surface being such asto tend to force the balls K outwardly against the inner surface of thetube A. This rod, with its conical bearing, is constantly pressedagainst the balls by the spiral spring S, which rests at its ripper endagainst the bottom of the screw-cap B, while the lower end pressesagainst the rod G, which it preferably surrounds. In the form of penherein shown the lower part of the spring rests against small cross-rodsa a, fixed in the rod G, or cast thereon at right angles to each otherand serving to keep the upper part of the said rod G in the center ofthe tube A. The lower end of the'rod is centered by the conical bearingH, which touches lightly the inner surface of the tube at a number ofpoints, It hh h, Fig. 4, being cut away between those points to allowthe ink with which the tube A is filled to flow bythe bearing. The outerscrew-cap, B, isc'entrally bored out and tapped to admit the innerscrew, 0, which is preferably provided with the hole e for admittingairinto the interior of the tube. The lower end of the screw 0 fits anopening, I), in the enlarged portion {1 of the rod G when the said screwis in contact with the top of the rod, this being the proper positionwhen the pen is not in use. In this position the air-hole c is closed,

and at the same time the ball L is firmly pressed outwardly and heldagainst its seat in the contracted month f of the tube A, the seat beingaccurately fitted to the ball. In this position no ink can escape fromthe pen. When once the marking-sphere L, the antifriction balls K K K,the rod G and its attachments, and the spring S are introduced in place,the cap B is screwed down and need rarely be removed, except forcleaning the pen. The filling is accomplished by unscrewing the innerscrew, 0, and introducing the ink or marking-fluid through the holenormally filled by the said screw.

. In Fig. l the pen is shown in proper posi tion for marking. The screw0 is unscrewed slightly from its closed position and the pen is heldnearly upright. When the ball L is pressed against a surface, the springS yields, allowing the ink to flow out of the tube around the ball onall sides to the poiutin contact with the surface to be marked, theamount of the flow and the width of the line being determined by theamount of play of the ball L inside the contracted month, which is inturn done over; cracks and-seams, and the point can neither split,spatter, nor catch; hence its adaptability for marking wooden or paperboxes and other rough articles. I claimro v 1. A pen having a spheroidalmarking-poi nt,

substantially as described.

2. A pen having a marking-sphere capable of revolving in all directions,substantially as and for the purposes described. 7

3. In a fountain-pen, a marking-sphere, in combination with a spring,and a tube having a contracted mouth, whereby the sphere projects fromthe tube, substantially as and for the purposes described. 5

4. In a fountain-pen, a tube having a contracted mouth, in combinationwith a spring, a marking-sphere, and one cr more anti-friction balls,substantially as described.

2 5 5. A pen having a marking-sphere, in combination with one or moreanti-friction balls, substantially as described.

6. In a fountainrpen, a tube having a contracted mouth, in combinationwith a markingsphere, a screw, a spring, and a centrallyguided rodprovided with suitable end bearings, whereby the marking-sphere may beclosed tightlyinto the contracted mouth, substantially as andfor thepurposes described.

5 7. In a fountain-pen, a tube having a contracted month and a tappedscrew-cap, in combination with an inner screw, a markingsphere, aspring, and a. centrally-guided rod provided with suitable end bearings,substan- 4o tially as described.

8. In a fountain-pen,'a tube having a contracted month, in combinationwith a marking-sphere, one or more anti-friction balls, a screw, aspring, and a centrally-guided rod,

4 5 substantiallyasand for the purposes described.

9. In a fountain-pen, a tube having a conregnlated the distance between'the opening marking-sphere, anti-friction balls, a spring,

scan-rs tracted mouth, in combination witha marki'ngsphere, a spring, acentrally-guided"rodpro-' vided with suitable end bearings, and a screwprovided with an air-hole, whereby by turning the screw against thecentrally-guided rod both the air-hole is stopped and the markingsphereclosed tightlyinto the contracted mouth, substantially as and forthepurposes described. I 10. A pen consisting of a. tube, A, having thecontracted mouth f and the tapped screwcap B, in combination with theinner screw, 0, the marking sphere L, the anti-friction balls K, thespring S, and the centrally-guided rod G, provided with the endbearings, g and H, all arranged and operated substantially as and forthe purposes described.

11. In a pen, substantially as described, a centrally-guided rod flaredat one end and provided with a recess, and having at the other end aconical bearing-cut away at intervals along its outer edge,substantially as and for the purposes described. g

12. In a pen, substantially as described, a rod provided with guides aa, and having at 73 one end the flared recessed portion 9 and at theother the conical bearing H, cut away at intervals along its outer edge,whereby it touches theinner surface of the cylinder at the portions h,substantially as and for the pur- 75 poses described.

13. A fou ntain-pen consisting of a tube having a contracted month and atapped screw cap, in combination with an inner screw, a

and a rod provided with guides ac, and having at one end a flaredrecessed bearing, 9, and at the other the conical bearing H, cut away atintervals, all arranged and operated substantially as and for thepurposes described. 8 5

In witness whereof I have hereuntoset my hand.

JOHN J. LOUD.

Vitnesses:

WM. B. H. Dowss, ALBERT E. LEACH.

